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Trane TCP024F100AB Defrost Sensor Board
The defrost sensor board controls if and when to commence the defrost sequence which may be needed in order to continue normal heating and cooling operations. It is influenced by a defrost sensor that can be found near the condenser, in order to determine when to initiate the defrosting cycle.
Signals the defrost sensor board is on its last leg
- The defrost feature refuses to initiate even when there is a large quantity of frost on the external unit
- The control board may throw an error number produced when the defrost board is bad
- The AC may end up not running because of frost blocking the fins on the outside unit
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